On election night 1936, Franklin D. Roosevelt was sitting on top of the political world. Within a year, two seismic events would transform the political landscape. A nationwide outbreak of labor unrest, particularly the spread of a new and potent union weapon, the sit-down strike, and FDR's launching of a scheme to overhaul the Supreme Court would combine to generate a fierce public backlash that tarnished Roosevelt's mystique and drained the lifeblood...